Monica A. Muzzin, PA-C
Medical Physician Assistant · Vallejo, CA
Monica A. Muzzin, PA-C is a medical physician assistant with a practice address in Vallejo, California, and NPI 1639546914, issued on Aug 21, 2015. Check the license (California 52678, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Monica A. Muzzin
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- 52678 CA
Self-reported in NPPES; status is on the state search - Practice location
- 100 Hospital Dr, Vallejo, CA 94589
- Phone
- (707) 427-4900
- Enumerated
- Aug 21, 2015
- Record last updated
- Feb 11, 2022
- Medicare enrollment
- Enrolled (PECOS I20151124000758); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 3,376 in California → Look up another NPI →
Also registered at 100 Hospital Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lois Baeta, N.P.Nurse Practitioner1760620983
- Joann Dandurand, FNPFamily Medicine Physician1659332146
- Sean Hennessey, MDFamily Medicine Physician1750342242
- Stella Huang, D.O.Obstetrics & Gynecology Physician1760610273
- Chainarong Limvarapuss, MDHematology & Oncology Physician1053341784
- Alisha McGriff, NPFamily Nurse Practitioner1043050495
Verify Monica A. Muzzin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 52678Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% fewer Medicare Part D claims than the average medical physician assistant in 2024
994 Medicare Part D claims for 858 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.
Most prescribed
- Gavilyte-C817 claims
- Carvedilol21 claims
- Spironolactone17 claims
- Xifaxan15 claims
- Lactulose13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Permanente Medical Group IncSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Monica A. Muzzin among 3,376 medical physician assistant records in California
Monica A. Muzzin, PA-C is one of 3,376 medical physician assistant records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 62% of them.
- NPI issued2015 · 62% of these records are older, 34% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Graduated2015 · median 2012 among the 1,347 with a school on file
- Record last updated2022 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Physician Assistant providers in California
There are 3,376 medical physician assistant records in California.
All 3,376 in California → Every provider in Vallejo → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Brittany DinglerVallejo, CA 945891922648393
- Gideon Lebowitz, PA-CVallejo, CA 945891295474799
- John Alexander, PA-CVallejo, CA 945901023056983
- Tanya Brosnan, P.A.Pleasanton, CA 945881285016998
- Carey Cano, PA-CVallejo, CA 945901114986809
- Brandon HarmonPleasanton, CA 945881710744834
- Joy Moverley, MPH, PA-CVallejo, CA 945901285996611
- Margaret Nonato, PA-CVallejo, CA 945901013961572
Common questions
What is Monica A. Muzzin, PA-C's NPI number?
Monica A. Muzzin, PA-C's National Provider Identifier (NPI) is 1639546914, issued on Aug 21, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Monica A. Muzzin, PA-C located?
The NPPES record lists a practice address at 100 Hospital Dr, Vallejo, CA, 94589. Phone: (707) 427-4900. Providers update this record themselves, so call before visiting.
How can I verify Monica A. Muzzin, PA-C's license?
NPPES lists California license number 52678, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Monica A. Muzzin, PA-C prescribe under Medicare Part D?
In 2024, Monica A. Muzzin, PA-C had 994 Medicare Part D claims for 858 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.